He who is gracious to his lover under the impression that he is rich, and is disappointed of his gains because he turns out to be poor, is disgraced all the same: for he has done his best to show that he would give himself up to any one's "uses base" for the sake of money; but this is not honourable.

I can show you that the art of calculation has to do with odd and even numbers in their numerical relations to themselves and to each other.

'But the man who is ready to taste every form of knowledge, is glad to learn and never satisfied - he's the man who deserves to be called a philosopher, isn't he?'

Do not expect justice where might is right.

Only a philosopher's mind grows wings, since its memory always keeps it as close as possible to those realities by being close to which the gods are divine.

I would have you imagine, then, that there exists in the mind of man a block of wax... and that we remember and know what is imprinted as long as the image lasts; but when the image is effaced, or cannot be taken, then we forget or do not know.

What is better adapted than the festive use of wine in the first place to test and in the second place to train the character of a man, if care be taken in the use of it? What is there cheaper or more innocent?